430 Stainless Steel is a low carbon ferritic stainless steel which approaches the corrosion resistance to 304 Stainless. It also contains great formability characteristics and does not work harden. Common uses for this material include automotive trim, appliance components, and exposed construction products.
Chemical Composition
Element | Type 430 |
Carbon | 0.12 Max |
Manganese | 1.0 Max |
Sulfur | 0.030 Max |
Phosphorus | 0.040 Max |
Silicon | 1.0 Max |
Chromium | 16.0-18.0 |
Nickel | 0.75 Max |
Mechanical Properties
Tensile Strength | Yield Strength | Elongation (2") | Rockwell Hardness |
75,000 | 50,000 | 25% | 85 |
Stainless | |
Armour Alloys | |
Sheet, Plate, Coil | |
Automotive trim, lashing wire, element supports, stove trim rings and fasteners are typical uses. | |
Good resistance to wide variety of corrosive media including nitric acid and some organic acids. It attains its maximum corrosion resistance in the highly polished or buffed condition. | |
Good resistance to scaling in intermittent service tol 600°F and in continuous service to 1500°F. 430 grades may become brittle at room temperature after prolonged heating in the 750°F – 1100°F range. This can be eliminated by annealing. | |
Annealing – Heat to 1500°F – 1550°F, hold for 30 minutes per inch of thickness, slow furnace cool to 1100°F then quickly air cool. 430 grades cannot be hardened by thermal treatment. |
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